Sink-plug



(No MoielJ C. E. SMITH. SINK PLUG Patented Apr. 23, 1895.

R 0 T N E v N WITNESS-ES:

ATTORNEY .ATENT FCEB CHARLES E. SMITH, OF BRIDGEPORT, CONNECTICUT.

SINK-PLUG.

SPECIFICATION forming part of Letters Iatent No. 537,864, dated April 23, 1 895.

' Application filed February 13,1895. Serial No. 538.275. (No model.)

- ture and object of which will be best understood from the following description, reference being had to the accompanying drawings, in which Figure l is a perspective showing the parts of my improvement disconnected but in proper relative position preparatory to assembly; Fig. 2, a sectional elevation of my improved plug; Fig. 3,a view similarto Fig. 1 but showing a modified form of my improvement; Fig. 4, a sectional elevation of a completed plug constructed after the modification shown at Fig. 3, and Fig. 5 a sectional elevation of an additional modified form of my improvement.

Similar numbers of reference denote like parts in the several figures of the drawings.

1 is a usual rubber plug having therethrough from top to bottom a perforation 2..

' the cap plate 3 so that the disk will be interposed between said flange and plate, and then, by any suitable mechanical means, curl or bead over the lower edge of said plate around the peripheries of said disk and flange and beneath the bottom of the flange as clearly shown at Fig. 2. This firmly unites the cap plate, disk and tube together. The tube is then inserted through the perforation 2 within a recess 8 formed in the plug, and a washer 9 is then placed around the bottom of the 'tube and the edges of the latter are spread and set firmly over against the bottom of the washer thereby drawing all the parts firmly together. The nub 4 is perforated and. a ring 10 is placed therein. The disk 7 prevents any leakage through the plug, while the cap plate 3 presents a smooth, rounded and finished ap pearance upon the top of the plug.

At Fig. 3 I have shown a nub 11 and tube 12 made integral with a swaged offset 13 extending around the same to afford a shoulder which sets against a washer 14, as shown at Fig. 4 this washer being placed on top of the plug, the top being secured in position precisely in the same manner as that hereinbefore described. In this construction shown at Fig. 4 a block 15 of rubber is driven upward within the tube to prevent leakage through the plug.

At Fig. 5 I have shown a construction which is the same as that shown at Fig. 4 with the exception that the washer on top of the plug is dispensed with and a swaged offset 16 formed around the tube of sufficient width to serve the purposes of the washer. I however prefer the construction shown at Figs. 1 and 2 since it can be manufactured cheaper than the other constructions, owing to the fact that it is extremely difficult to draw up a long tube such as is shown at Figs. 4 and 5, and for the further reason that a good finish may be placed upon the several parts shown at Fig. 1 by means of tumbling, whereas the parts shown at Figs. 4 and 5 could not be tumbled with good results but would require further finishing by hand.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isp 1. A sink plug comprising a rubber body recessed at the bottom and having a perforationextending therethrough from top to bottom, a cap plate on top of said plugand having a hollow perforated nub rising therefrom, a ring within said nub, atube rigid with said plate and passed through the perforation in the plug, a washer around the bottom of the tube and against which washer the edges of the tube are expanded, and a disk within said tube to render the latter water tight, substantially as set forth. 7

ICO

2. The combination of the rubber plug recessed at the bottom and having a perforation extending therethroug'h from top to bottom, the cap plate surmounting the plug and I having rising therefrom a hollow perforated nub, the ring within said nub, the tube extending through the perforation in the plug and having a flange extending from its upper end, the disk interposed between said flange and cap plate, the edge of the latter being curled around said disk and flange below the 1 bottom of the latter, and the washer around the lower endof the tube and against which washer the bottom of the tube is expanded, substantially as set forth.

In testimony whereof I afiix my signature in presence of two Witnesses.

CHARLES E. SMITH.

Witnesses:

F. W. SMITH, Jr., M. T. LONGDEN. 

